Eric GeierContributor, TechHive

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Eric Geier is a freelance tech writer as well as the founder of NoWiresSecurity, a cloud-based Wi-Fi security service, and On Spot Techs, an on-site computer services company.

MU-MIMO compared to SU-MIMO

How MU-MIMO Wi-Fi works to improve the speed and capacity of home networks

Multi-user MIMO promises to deliver a significant upgrade in wireless-networking performance. Here’s why everyone’s so excited.

Netgear Nighthawk X6 802.11ac Wi-Fi router

Quality of Service explained: How routers with strong QoS make better home networks

Bandwidth is the precious currency of networks. A router with good Quality of Service technology makes sure all devices get their fair share.

angry cell phone smartphone man user

Gimme a boost: 3 ways to make calls when your cellular signal is terrible

If you find yourself asking, "Can you hear me now?" it might be time to explore Wi-Fi calling, femtocells, or signal boosters.

Future Wi-Fi

What’s next for Wi-Fi? A second wave of 802.11ac devices, and then: 802.11ax

While you consider which 802.11ac router to buy, the industry is working hard to render it obsolete. Here's what to expect in the next few years, as engineers tease more bandwidth and faster transmission speeds out of Wi-Fi.

Meet WISP, the wireless future of Internet service

No cable or phone line required. No satellite lag. Traditional ISPs should be nervous.

Beamforming

All about beamforming, the faster Wi-Fi you didn't know you needed

It focuses the signal for faster transmission, and it's built into many of the latest 802.11ac routers.

Ditch your ISP's modem and change your Internet experience forever

If your ISP allows it, buying and installing your own modem can net you some sweet performance improvements and a cheaper monthly bill.

on pcworld.com

AVG's 2014 lineup of antivirus and security includes new Web privacy protections

New features include File Shredder to make deleted files unrecoverable, and Data Safe to create a virtual encrypted drive. AVG also released its PrivacyFix app for iOS and Android, to assess privacy settings on the fly.

on pcworld.com

Resurrect your old PC as a public kiosk for fun and profit

Give your old hardware a second life: Build a PC with the right tools and software to provide safe, secure public access in a small business or public setting.

on pcworld.com

How to clean and secure your browser like a pro

Ads and toolbars are the scum and villainy of the browser world. Eliminate them quickly and make sure they never come back with these simple tips.

Here's what an eavesdropper sees when you use an unsecured Wi-Fi hotspot

Use unsecured public Wi-Fi hotspots much? You'll rethink that practice after we show you what can be captured from those connections.

on pcworld.com

How to child-proof the Internet

Child predators, pornography, online bullying—kids can stumble into all sorts of trouble online. Make sure your PC, mobile devices, and social networks are safe with these simple tips.

How (and why) to set up a VPN today

Investing in a good VPN is one of the smartest steps you can take toward improving your online privacy. We'll show you how to do it right.

on pcworld.com

Lock down your social media with essential security add-ons

Are you doing everything you can to protect your kids and yourself on social networks? These apps and services can keep an eye on their and your accounts and alert you to any dangerous activity.

on pcworld.com

PayAnywhere Review: A Feature-Rich Mobile Payment Processor

PayAnywhere is a good choice if you're looking for a simple processor or even a POS-like system that supports cash drawers and can print receipts.

on pcworld.com